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How to upplug fan in desktop

Fan is making a constant noise

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  • Ray Seb Nov 02, 2012

    thx for the help I cleaned the dust and found what looks like the problem fan. It is situated on the Video graphics board(?) in a very thin space within a black plastic covering. It looked very dusty, so I have to remove it and give a good cleaning. The suggestion to clean and blow out the dust has made a good difference.



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How to Reduce the Noise of Your CPU Fan

The CPU fan is what keeps the processor of your computer cool while the machine is running. A noisy fan on the CPU can be very annoying for users of the computer. However, it can also be a sign of a dangerous problem in your system. If the CPU fan is making noise, it is probably not running at full capacity to cool the processor, which leaves your computer open to problems involving overheating of the processor. An overheated processor can be permanently damaged.
Step 1

Unplug the computer from the wall. Remove all devices from the back of the computer and move them away from the area where you will be working. Either wear an anti-static wristband or discharge any static by touching a metal part of the computer case.
Step 2

Remove the screws from the back of the computer case with a screwdriver. Pull the sides of the case off and set them aside. Lay the computer on its side so that you can easily see the motherboard and all parts connected to it. Locate the CPU fan; it will look similar to the image in the introduction.
Step 3

Ensure that no cables are hanging low and touching the blades of the CPU fan. Move any cables or other parts that could be hitting the blades of the fan causing noise. Tuck these cables and wires into an area where they cannot interfere with the CPU fan.
Step 4

Use a cotton swab to remove any dust that you can from the blades of the CPU fan. Don't use any harsh solvents or other cleaners that could drip down and damage the processor through the fan.
Step 5

Spray the compressed air into the fan to move the loose dust away from the processor fan. Move the dust into an empty section of the case with the canned air. Don't spray the air too hard or else you can spread the dust into other places in the computer.
Step 6

Use the vacuum cleaner to vacuum up the dust that you moved away from the CPU. Place a crevice tool or other attachment onto the hose to reduce the size of the opening and help ensure that you only remove dust.
Step 7

Replace the computer case. Plug the computer and all devices back in. Boot up the computer and check for reduced CPU fan noise.

Posted on Oct 31, 2012


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SOURCE: acer m5100 desktop fan is making noise

Often, just dust can make fans noisy. You can unplug everything, take the side cover off of your tower, and blow it out with a can of the air duster you can buy at a computer store, paying close attention to the fans. If you are not comfortable with this, a local shop should be able to clean it up for you for not a lot of cash, and if a fan is really bad, they could identify which one it is for you too.

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SOURCE: My PC desktop is making a clicking noise

Assuming the 'clicks' are heard when you're on the could be a page in the background updating its 'ad' or auto 'clicking' to another page (within the main page on a different frame). This happen alot on hotmail pages ads using 'Flash'.

You can turn the volume off while surfing until you need to listen to something & turn your volume back on. (I do)

Hope this throws some light on the issue
Good Luck!

Posted on Apr 01, 2009

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SOURCE: My processor is making a strange noise.The fans

Processor is clean?

Hmmm, are you sure you aren't referring to the Heatsink, sitting on top of the Processor's case?

One example of a typical Heatsink/Fan combo,

[Typical construction of a Heatsink is a flat plate of metal, with tall, thin fins protruding from it.

The plate of metal absorbs heat from whatever object it is placed against, and the tall, thin fins absorb the heat from the plate, whereupon the fins radiate the heat away.

A Processor isn't the only hardware component inside a personal computer, that utilizes a Heatsink.

A Heatsink is also utilized inside a Power Supply, (Usually more than one Heatsink), and on graphics cards.
Some high-performance ram memory modules, ('Stick'), may also use a type of Heatsink. (Heat Spreader ]

In your reference, "The fans are clean, and so is the Processor", I hope this isn't an actual reference that the top of the Processor's case is clean.

There Absolutely MUST be thermal paste, used in-between the top of the Processor's case, and the bottom of the Heatsink.

The top of a Processor's case, and the bottom of a Heatsink are not perfectly smooth. A microscopic view would reveal, 'Hills, Valleys, and Pit holes'

These minute imperfections create air pockets, in-between the top of the Processor's case, and the bottom of the Heatsink.

Air is an Insulator, not a Conductor.

Thermal paste fills these imperfections, and is an excellent conductor.
Conducts heat from the top of the Processor's case, to the bottom of the Heatsink.

If your Processor has a thermal pad, (Usually whitish in color, and looks just like the description. A flat Pad), suggest you take it off, and throw it at the cat.

Thermal pads are Junk!

Thermal paste, with a one Processor application, averages around $5.
NEVER run a Processor without thermal paste, and ensure that the top of the Processor's case, and the bottom of the Heatsink, are Perfectly clean.

(Computer unplugged from power, Anti-Static Precautions observed. A Processor is the MOST susceptible hardware component in a computer, to Static shock)

I use an old credit card to scrape the old thermal paste from the Processor, and Heatsink. It's plastic so it won't scratch, nor transfer Static electricity.

I then follow with Q-tips dipped in Isopropyl Alcohol.
91 percent, (91%), alcohol is best. 70 percent will do in a pinch.

I advise not using 50/50. (91 percent alcohol, 9 percent water. 70 percent alcohol, 30 percent water, and so on)

Isopropyl Alcohol is also known as Rubbing Alcohol.

Isopropyl Alcohol is Extremely Flammable!
Use in a WELL ventilated room with no sparks, or flames present ]

It may take a few Q-tips, as the thermal paste residue may be a sticky mess.
HAS to be Thoroughly clean, before applying new, fresh thermal paste.

Correct method for applying thermal paste, (Also referred to as thermal grease),

Ensure that the Heatsink is sitting FLAT on top of the Processor.
Slightly tilted will NOT work.

It is for this reason I dismount the motherboard from the computer case, and from a side view, look across at the mounting of the Heatsink, to the top of the Processor's case.

No daylight must be showing in-between the top of the Processor's case, and the bottom of the Heatsink.
The Heatsink must be sitting perfectly flat, on the top of the Processor's case.

The only time I have heard of a Processor making a noise, is when it is close to failing. (Quit, Die, Kaput)
The noise may be Taps, or a french(?) retreat song, that escapes me at the moment.
(Perhaps it's a song from Bach, or Trachosky, or Mozart)

Some computers use a computer case fan in the front, to push air through a plastic shroud, which encases the Heatsink.

Most computers use a Fan on top of the Heatsink.

In this case, are you sure the wires that provide power to the Processor fan, aren't being hit by the Processor fan blades?

Also, have you checked the Processor fan for bad bearings?

Gently lift up on one side of the Processor's fan blades.
Does the fan seem tight in the bearings, or loose?

If the bearings are bad, it will allow the fan's center hub to tilt to one side, and scrape.

Posted on Sep 19, 2010

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